Optical fiber spool

Abstract

This utility model provides a fiber optic winding reel, relating to the technical field of fiber optic winding equipment. The fiber optic winding reel includes a cylindrical tube, two winding components, and a connecting mechanism. The cylindrical tube has a hollow cylindrical structure, and the two winding components are symmetrically installed at both ends of the cylindrical tube. Each winding component includes a reel, a plate, and a shaft, with the plate vertically fixed to the end of the reel. This reel adopts a modular design. When a winding component is damaged due to operational errors, external impacts, or long-term wear and tear, such as deformation or cracks, the damaged component can be removed and replaced with a new one simply by disassembling the connecting mechanism, significantly reducing equipment maintenance costs. Furthermore, the reel has an expansion mechanism inside the plate. When the length of the fiber to be wound exceeds the initial design capacity of the reel, there is no need to replace it with a larger reel; the winding capacity can be expanded simply by using the expansion mechanism, allowing the reel to flexibly adapt to winding operations of fibers of different lengths.

Description

Technical Field

[0001] This utility model relates to the technical field of optical fiber winding equipment, and more specifically, to a fiber optic winding reel. Background Technology

[0002] In the production, transportation, and use of optical fibers, the fiber spool serves as the core carrier for fiber winding and storage. Its structural rationality directly affects fiber winding efficiency, storage security, and equipment maintenance costs. Currently, most mainstream fiber optic winding spools on the market are integrated structures, consisting of a spool directly welded to a fixed spool body or formed as a single piece. While this meets basic winding requirements, it has certain drawbacks in practical applications: If an integrated reel is deformed or damaged in a localized area (such as the reel body or shaft) due to operational errors, external impacts, or long-term wear, the entire reel must be scrapped and replaced. This makes localized repair impossible, resulting in resource waste and increased maintenance costs. Therefore, developing a fiber optic reel with a modular structure that allows for easy replacement of local components is a key requirement to address the shortcomings of existing technologies and improve the efficiency of fiber optic winding operations. Utility Model Content

[0003] The present invention aims to solve the problem of the inability to replace parts after the existing coil is damaged.

[0004] To address the aforementioned problems, this utility model provides a fiber optic winding reel, comprising a spool, two reel components, and a connecting mechanism. The spool is a hollow cylindrical structure, and the two reel components are symmetrically installed at both ends of the spool. Each reel component includes a drum, a plate, and a shaft. The plate is vertically fixed to the end of the drum, and the shaft passes through and is fixed to the center of the plate. The two ends of the drum are tightly fitted to the inner side of the plate of the corresponding reel component. The outer wall of the drum is adapted to the inner wall of the spool. The shafts of the two reel components are connected by a connecting mechanism.

[0005] The fiber optic winding reel provided by this utility model has, but is not limited to, the following beneficial effects compared with the prior art: To address the issues of high maintenance costs and the need for complete replacement of existing integrated reels due to partial damage, this new reel adopts a modular design. It consists of a reel drum and two symmetrically embedded reel components. Each reel component comprises a drum drum, a plate, and a shaft. The two reel components are fixedly connected via a connecting mechanism. This structure allows each component of the reel to operate relatively independently. When a reel component is damaged due to operational errors, external impacts, or long-term wear and tear, resulting in deformation or cracks, it is not necessary to disassemble and replace the entire reel. The damaged component can simply be removed by disassembling the connecting mechanism and replaced with a new one. This significantly reduces equipment maintenance costs. Furthermore, the spool's structural design ensures stability during the winding process. The two ends of the spool fit tightly against the inner sides of the two spool plates, forming a lateral limit that effectively prevents lateral displacement of the spool outside the spool. Simultaneously, the outer wall of the spool matches the inner wall of the spool, and the connecting mechanism secures the two spools, ensuring the spool rotates synchronously with the spools without slippage. This guarantees the neatness of the fiber winding, prevents surface wear due to offset or slippage, ensures fiber winding quality, and results in better performance.

[0006] Furthermore, the connecting mechanism includes a mounting block, a screw, and a nut; the mounting block is fixed to the outer wall of the shaft cylinder and is evenly distributed along the circumference of the shaft cylinder; the screw passes through the mounting blocks of the two coil components; and the nut is threaded onto both ends of the screw and fits against the outer wall of the mounting block.

[0007] Furthermore, the outer wall of the disc plate is provided with an installation opening corresponding to the mounting block, which is used to assist in the installation of screws and nuts.

[0008] Furthermore, an expansion mechanism is provided on the inner side of the reel plate to expand the winding capacity. The expansion mechanism includes a mounting groove, a fixing shaft, and an expansion plate. The mounting groove is opened on the inner side of the reel plate and is evenly distributed along the circumference of the reel plate. The fixing shaft is fixed to the inner wall of the mounting groove. One end of the expansion plate is sleeved on the outer side of the fixing shaft and can be rotated 180 degrees around the fixing shaft. A locking component is also provided on the outer side of the reel plate to lock the position of the expansion plate.

[0009] Furthermore, the locking assembly includes a lock hole, a locking rod, and a knob; the lock hole is opened on one side of the outer wall of the expansion plate, and a threaded hole is correspondingly opened on the inner wall of the mounting groove; one end of the locking rod is threadedly connected to the threaded hole, and the other end is fixedly connected to the knob; when the expansion plate is parallel to the plate, the locking rod can be screwed into the lock hole.

[0010] Furthermore, rubber strips are provided on both sides of the expansion plate, and the rubber strips are in contact with the inner wall of the mounting groove.

[0011] Furthermore, the outer side of the drum is provided with equidistant, ring-shaped limiting strips, and the inner side of the drum is provided with corresponding limiting grooves that are adapted to the limiting strips, so that the limiting strips are inserted into the limiting grooves.

[0012] Furthermore, a monitoring mechanism is provided on the outer side of the shaft cylinder to monitor the number of rotations of the coil. The monitoring mechanism includes a mounting cylinder, a collar, a counterweight, a laser receiver, and a laser emitter. The mounting cylinder is fixedly installed at the end of the shaft cylinder, and the axis of the mounting cylinder coincides with the axis of the shaft cylinder. The collar is movably sleeved on the outer side of the mounting cylinder, and the lower part of the collar is fixedly connected to the counterweight. The laser emitter is fixed on the outer side of the coil plate, and the laser receiver is fixed on the side of the counterweight close to the laser emitter, and the height and angle of the laser emitter and laser receiver are matched.

[0013] Furthermore, the disc, disc plate, and shaft are all integrally formed; the limiting strip is integrally formed with the disc.

[0014] Furthermore, the laser emitter is a red dot laser, and the laser receiver is a photoresistor receiver, which is electrically connected to an external counting unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the fiber optic winding reel according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A in the diagram; Figure 3 This is a half-sectional view of the optical fiber winding reel according to an embodiment of the present invention. Figure 4 for Figure 3 Enlarged structural diagram at point B in the diagram; Figure 5 This is a schematic diagram of the structure of the wire reel component according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the spool according to an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Wire spool; 2. Wire reel assembly; 21. Reel; 22. Reel plate; 23. Shaft cylinder; 3. Connecting mechanism; 31. Mounting block; 32. Screw; 33. Nut; 4. Expansion mechanism; 41. Mounting groove; 42. Fixed shaft; 43. Expansion plate; 44. Rubber strip; 5. Locking assembly; 51. Lock hole; 52. Locking rod; 53. Knob; 6. Monitoring mechanism; 61. Mounting cylinder; 62. Collar; 63. Counterweight; 64. Laser receiver; 65. Laser emitter; 71. Limiting groove; 72. Limiting strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0018] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, in the attached diagram, the X-axis represents the vertical direction, that is, the front-to-back position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back; in the attached diagram, the Y-axis represents the horizontal direction, that is, the left-to-right position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right; in the attached diagram, the Z-axis represents the vertical direction, that is, the up-to-down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0021] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0024] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0025] See Figures 1-6An embodiment of the present invention provides a fiber optic winding reel, comprising a reel 1, two reel components 2, and a connecting mechanism 3. The reel 1 is a hollow cylindrical structure, and the two reel components 2 are symmetrically installed at both ends of the reel 1. Each reel component 2 includes a reel 21, a reel plate 22, and a shaft cylinder 23. The reel plate 22 is vertically fixed to the end of the reel 21, and the shaft cylinder 23 passes through and is fixed to the center of the reel plate 22. The two ends of the reel 1 are tightly fitted to the inner side of the reel plate 22 of the corresponding reel component 2. The outer wall of the reel 21 is adapted to the inner wall of the reel 1, and the shaft cylinders 23 of the two reel components 2 are connected by the connecting mechanism 3.

[0026] In this embodiment, addressing the issues of high maintenance costs and the need for complete scrapping of existing integrated reels due to partial damage, the reel adopts a modular design. It consists of a reel 1 and two reel components 2 symmetrically positioned at its ends. Each reel component 2 includes a reel 21, a reel plate 22, and a shaft cylinder 23. A connecting mechanism 3 securely connects the shaft cylinders 23 between the two reel components 2. This structure allows each component of the reel to operate relatively independently. When a reel component 2 is damaged due to operational errors, external impacts, or long-term wear and tear, such as deformation or cracks, it is not necessary to disassemble and replace the entire reel. The damaged reel component 2 can be removed individually and replaced with a new one simply by disassembling the connecting mechanism 3. This significantly reduces equipment maintenance costs, avoids resource waste caused by complete scrapping, and also reduces the need for further maintenance. The reduced downtime during the fiber optic cable replacement process significantly improves the overall efficiency of fiber optic cable winding operations, solving the shortcomings of existing integrated reels in terms of inconvenient maintenance and poor economic efficiency. Secondly, the structural design of this reel also ensures the stability of the winding process. The two ends of the cable drum 1 are tightly fitted to the inner sides of the reel plates 22 of the two reel components 2, forming a lateral limit, which effectively prevents the cable drum 1 from shifting laterally outside the reel 21. At the same time, the outer wall of the reel 21 is adapted to the inner wall of the cable drum 1, and with the fixing effect of the connecting mechanism 3 on the two reel components 2, it ensures that the cable drum 1 can rotate synchronously with the reel components 2 without relative slippage. This ensures the neatness of the fiber winding during fiber optic cable winding, avoids fiber surface wear caused by shifting or slippage, and ensures the quality of fiber optic cable winding. This is also an advantage that is difficult to achieve with some existing reels.

[0027] Optional, please refer to Figure 1 and Figure 5 The connecting mechanism 3 includes a mounting block 31, a screw 32, and a nut 33. The mounting block 31 is fixed to the outer wall of the shaft cylinder 23 and is evenly distributed along the circumference of the shaft cylinder 23. The screw 32 passes through the mounting block 31 of the two wire coil parts 2. The nut 33 is threaded onto both ends of the screw 32 and fits against the outer wall of the mounting block 31.

[0028] In this embodiment, the mounting blocks 31 are uniformly fixed around the circumference of the shaft cylinder 23 (usually 2-4 sets), forming circumferentially symmetrical force support points; the screw 32 passes through the corresponding mounting blocks 31 of the two wire reels 2, and the two wire reels 2 are clamped and fixed to the wire cylinder 1 as a whole by the axial locking force of the nuts 33 at both ends, ensuring that no parts loosen when the wire reels rotate at high speed, and the uniformly distributed mounting blocks 31 around the circumference make the force balanced, avoiding deformation of the reel plate 22 caused by excessive local stress. Compared with welding fixation, the detachable design improves the replacement efficiency of the wire reel 2.

[0029] Among them, the screw 32 is made of high-strength bolt, and the nut 33 is equipped with a spring washer to prevent loosening, which is suitable for long-term vibration conditions.

[0030] Optionally, the outer wall of the disc plate 22 is provided with an installation port corresponding to the mounting block 31 for assisting in the installation of the screw 32 and the nut 33.

[0031] In this embodiment, the mounting opening is positioned corresponding to the mounting block 31, and the opening size is larger than the diameter of the screw 32, providing operating space for tools such as wrenches, facilitating the tightening and disassembly of the nut 33, and solving the problem of difficult installation of the connecting mechanism 3 caused by the obstruction of the disc plate 22.

[0032] The edges of the mounting opening are rounded to prevent scratches to hands or tools during operation.

[0033] In existing technologies, the winding capacity of integrated reels is fixed. When the length of the optical fiber to be wound exceeds the design capacity of the reel, a reel of the corresponding specification needs to be replaced. This not only increases the equipment procurement cost, but also requires frequent shutdowns to replace the reel, reducing the efficiency of the winding operation. Furthermore, the idle reels after replacement require additional storage space, further increasing production management costs.

[0034] Optional, please refer to Figure 1 and Figure 2 The inner side of the reel 22 is also provided with an expansion mechanism 4 for expanding the winding capacity. The expansion mechanism 4 includes a mounting groove 41, a fixing shaft 42, an expansion plate 43, and a rubber strip 44. The mounting groove 41 is opened on the inner side of the reel 22 and is evenly distributed along the circumference of the reel 22. The fixing shaft 42 is fixed to the inner wall of the mounting groove 41. One end of the expansion plate 43 is sleeved on the outer side of the fixing shaft 42 and can be rotated 180 degrees around the fixing shaft 42. The outer side of the reel 22 is also provided with a locking component 5 for locking the position of the expansion plate 43. When the length of the optical fiber to be wound exceeds the initial design capacity of the reel, there is no need to replace it with a larger reel. The winding capacity can be expanded simply by using the expansion mechanism, so that the reel can flexibly adapt to the winding operation of optical fibers of different lengths.

[0035] In this embodiment, the mounting groove 41 provides storage space for the expansion plate 43, and the fixed shaft 42 serves as a rotation fulcrum, enabling the expansion plate 43 to be rotated from 0 to 180 degrees. When unfolded, the expansion plate 43 is parallel to the coil plate 22, increasing the winding width of the coil. In the folded state, the expansion plate 43 is completely stored in the mounting groove 41, without affecting the regular winding operation. The fixed shaft 42 is made of brass, and the clearance between it and the shaft hole of the expansion plate 43 ensures smooth rotation without radial wobbling. The expansion plate 43 is reinforced with glass fiber and can withstand 50N of radial pressure without deformation.

[0036] Optional, please refer to Figure 2 The locking assembly 5 includes a locking hole 51, a locking rod 52, and a knob 53. The locking hole 51 is opened on one side of the outer wall of the expansion plate 43, and a threaded hole is opened on the inner wall of the mounting groove 41. One end of the locking rod 52 is threadedly connected to the threaded hole, and the other end is fixedly connected to the knob 53. When the expansion plate 43 is parallel to the disc plate 22, the locking rod 52 can be screwed into the locking hole 51.

[0037] In this embodiment, after the expansion plate 43 is unfolded, rotating the knob 53 drives the locking rod 52 to screw into the locking hole 51, and the expansion plate 43 is locked in a position parallel to the disc plate 22 by the self-locking force of the thread; rotating in the opposite direction can unlock the lock, so that the expansion plate 43 can be folded and stored.

[0038] Optional, please refer to Figure 2 Rubber strips 44 are provided on both sides of the expansion plate 43, and the rubber strips 44 are in contact with the inner wall of the mounting groove 41.

[0039] In this embodiment, the rubber strip 44 is fixed along both sides of the expansion plate 43. When folded, it fits tightly against the inner wall of the mounting groove 41, effectively ensuring that the expansion plate 43 is not easily detached when folded into the mounting groove 41.

[0040] Optional, please refer to Figure 5 and Figure 6 The outer side of the drum 21 is provided with equidistant, ring-shaped limiting strips 72, and the inner side of the drum 1 is provided with a corresponding limiting groove 71 that is adapted to the limiting strips 72, and the limiting strips 72 are inserted into the limiting grooves 71.

[0041] In this embodiment, the limiting strip 72 and the limiting groove 71 adopt a concave-convex fit (usually 6-10 sets). When the coil rotates, the torque is transmitted through the limiting surface to ensure that the coil 1 and the coil 2 rotate synchronously without relative slippage. This effectively avoids the fiber winding length error caused by slippage. Compared with key connection, multiple sets of limiting structures make the torque distribution more uniform and extend the component life. In addition, the limiting strip 72 and the coil 21 are integrally injection molded, which effectively improves the shear strength.

[0042] Meanwhile, during the fiber winding process, the existing reel requires manual monitoring of the number of rotations in real time, and the fiber winding length is calculated by converting the number of rotations into the reel circumference. This not only increases the labor intensity but also easily leads to insufficient winding length accuracy due to manual counting errors, affecting subsequent fiber cutting and use.

[0043] Optional, please refer to Figure 3 and Figure 4 A monitoring mechanism 6 is provided on the outer side of the shaft cylinder 23 to monitor the number of rotations of the coil. The monitoring mechanism 6 includes a mounting cylinder 61, a collar 62, a counterweight 63, a laser receiver, and a laser emitter 65. The mounting cylinder 61 is fixedly installed at the end of the shaft cylinder 23, and the axis of the mounting cylinder 61 coincides with the axis of the shaft cylinder 23. The collar 62 is movably sleeved on the outer side of the mounting cylinder 61, and the lower part of the collar 62 is fixedly connected to the counterweight 63. The laser emitter 65 is fixed on the outer side of the disc plate 22, and the laser receiver is fixed on the outer side of the disc plate 22. The counterweight 63 is located on the side close to the laser transmitter 65, and the laser transmitter 65 and the laser receiver are matched in height and angle. It can automatically monitor the number of rotations of the coil. During the winding operation, the monitoring mechanism can accurately capture the rotation status of the coil and automatically complete the count for each rotation. There is no need for manual real-time monitoring and recording. This not only greatly reduces the intensity of manual labor, but also effectively reduces errors such as omissions and miscounts that may occur during manual counting. This makes the calculation of the fiber winding length more accurate and provides reliable data support for the subsequent cutting and use of fiber.

[0044] In this embodiment, the mounting cylinder 61 rotates synchronously with the shaft cylinder 23, the collar 62 remains stationary (vertically downward) under the gravity of the counterweight 63, and the laser emitter 65 rotates with the disk plate 22, aligning with the laser receiver once for each rotation, triggering a counting signal.

[0045] The counterweight 63 (mass 500±50g) ensures that the collar 62 does not follow the rotation at a speed of 300r / min, the signal triggering stability is 100%, and it adopts a non-contact sensing design, which has no mechanical wear and a longer service life.

[0046] Optionally, the disc 21, disc plate 22 and shaft cylinder 23 are all integrally formed; the limiting strip 72 is integrally formed with the disc 21.

[0047] In this embodiment, the disc 21, disc plate 22, shaft cylinder 23 and limiting strip 72 are integrally formed by injection molding, eliminating the connection gap between components, forming an overall rigid structure, without welding or assembly stress, and with better overall strength.

[0048] Optionally, the laser emitter 65 is a red dot laser, and the laser receiver 64 is a photoresistor receiver, which is electrically connected to an external counting unit.

[0049] In this embodiment, a red dot laser emits a directional beam, and a photoresistor receiver converts the optical signal into an electrical signal. Each time the beam is received, the external counting unit records one revolution, thus achieving the purpose of recording the number of revolutions of the coil.

[0050] Among them, the photoresistor receiver has a response speed of ≤10μs, which can meet the high-speed winding and counting requirements below 500r / min. The laser has strong penetration and can still work stably in workshop environments with dust concentration ≤10mg / m³. It is compatible with external PLC or microcontroller and supports real-time data upload and threshold alarm (such as automatic shutdown when the preset length is reached).

[0051] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A fiber optic reel for winding, characterized in that, It includes a spool (1), two coils (2), and a connecting mechanism (3); the spool (1) is a hollow cylindrical structure, and the two coils (2) are symmetrically installed at both ends of the spool (1); The wire reel component (2) includes a reel cylinder (21), a reel plate (22), and a shaft cylinder (23). The reel plate (22) is vertically fixed to the end of the reel cylinder (21). The shaft cylinder (23) passes through and is fixed to the center of the reel plate (22). The two ends of the reel cylinder (1) are tightly fitted to the inner side of the reel plate (22) of the corresponding wire reel component (2). The outer wall of the reel cylinder (21) is adapted to the inner wall of the reel cylinder (1). The shaft cylinders (23) in the two wire reel components (2) are connected by a connecting mechanism (3).

2. The optical fiber winding reel according to claim 1, characterized in that, The connecting mechanism (3) includes a mounting block (31), a screw (32) and a nut (33); the mounting block (31) is fixed to the outer wall of the shaft cylinder (23) and is evenly distributed along the circumference of the shaft cylinder (23); the screw (32) passes through the mounting block (31) of the two wire coil parts (2); the nut (33) is threaded onto both ends of the screw (32) and fits against the outer wall of the mounting block (31).

3. The optical fiber winding reel according to claim 2, characterized in that, The outer wall of the disc plate (22) is provided with an installation port corresponding to the mounting block (31) for assisting in the installation of the screw (32) and the nut (33).

4. The optical fiber winding reel according to claim 1, characterized in that, An expansion mechanism (4) is also provided on the inner side of the reel plate (22) for expanding the winding capacity. The expansion mechanism (4) includes a mounting groove (41), a fixed shaft (42), and an expansion plate (43). The mounting groove (41) is opened on the inner side of the reel plate (22) and is evenly distributed along the circumference of the reel plate (22). The fixed shaft (42) is fixed to the inner wall of the mounting groove (41). One end of the expansion plate (43) is sleeved on the outer side of the fixed shaft (42) and can be rotated 180 degrees around the fixed shaft (42). A locking component (5) is also provided on the outer side of the reel plate (22) for locking the position of the expansion plate (43).

5. The optical fiber winding reel according to claim 4, characterized in that, The locking assembly (5) includes a lock hole (51), a locking rod (52), and a knob (53). The lock hole (51) is opened on one side of the outer wall of the expansion plate (43). The inner wall of the mounting groove (41) is provided with a threaded hole. One end of the locking rod (52) is threadedly connected to the threaded hole, and the other end is fixedly connected to the knob (53). When the expansion plate (43) is parallel to the plate (22), the locking rod (52) can be screwed into the lock hole (51).

6. The optical fiber winding reel according to claim 5, characterized in that, Rubber strips (44) are provided on both sides of the expansion plate (43), and the rubber strips (44) are in contact with the inner wall of the mounting groove (41).

7. The optical fiber winding reel according to claim 1, characterized in that, The outer side of the drum (21) is provided with equidistant ring-shaped limiting strips (72), and the inner side of the spool (1) is provided with a limiting groove (71) that is adapted to the limiting strips (72). The limiting strips (72) are inserted into the limiting grooves (71).

8. The optical fiber winding reel according to claim 1, characterized in that, A monitoring mechanism (6) is provided on the outside of the shaft cylinder (23) to monitor the number of rotations of the coil. The monitoring mechanism (6) includes a mounting cylinder (61), a collar (62), a counterweight (63), a laser receiver (64), and a laser emitter (65). The mounting cylinder (61) is fixedly installed at the end of the shaft cylinder (23), and the axis of the mounting cylinder (61) coincides with the axis of the shaft cylinder (23). The collar (62) is movably sleeved on the outside of the mounting cylinder (61), and the lower part of the collar (62) is fixedly connected to the counterweight (63). The laser emitter (65) is fixed on the outside of the plate (22), and the laser receiver (64) is fixed on the side of the counterweight (63) close to the laser emitter (65), and the height and angle of the laser emitter (65) and the laser receiver (64) are matched.

9. A fiber optic reel for winding according to claim 7, characterized in that, The disc (21), disc plate (22) and shaft cylinder (23) are all integrally formed; the limiting strip (72) is integrally formed with the disc (21).

10. A fiber optic reel for winding according to claim 8, characterized in that, The laser emitter (65) is a red dot laser, and the laser receiver (64) is a photoresistor receiver and is electrically connected to an external counting unit.

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